Datasheet

MAX31782
System Management Microcontroller
4
DC ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 5.5V, T
A
= -40NC to +85NC, unless otherwise noted. Typical values are at V
DD
= 3.3V, T
A
= +25NC, unless otherwise
noted.)
ELECTRICAL CHARACTERISTICS: I
2
C-COMPATIBLE INTERFACE
(V
DD
= 2.7V to 5.5V, T
A
= -40NC to +85NC, unless otherwise noted.) (Figure 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Flash Erase Time
t
ME
Mass erase 20 40
ms
t
PE
Page erase 20 40
Flash Programming Time per
Word
t
PROG
20 40
Fs
Flash Endurance N
FLASH
T
A
= +50NC
20,000
Write
Cycles
Data Retention
T
A
= +50NC
100 Years
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SCL Clock Frequency f
SCL
Timeout not enabled (Note 8) 10 400 kHz
Bus Free Time Between a STOP
and START Condition
t
BUF
1.3
Fs
Hold Time (Repeated)
START Condition
t
HD:STA
(Note 9) 0.6
Fs
Low Period of SCL Clock t
LOW
1.3
Fs
High Period of SCL Clock t
HIGH
0.6
Fs
Setup Time for a (Repeated)
START Condition
t
SU:STA
0.6
Fs
Data Hold Time (Note 10) t
HD:DAT
Receive 0
ns
Transmit 300
Data Setup Time t
SU:DAT
100 ns
Rise Time of Both SDA and
SCL Signals
t
R
(Note 11)
20 +
0.1C
B
300 ns
Fall Time of Both SDA and
SCL Signals
t
F
(Note 11)
20 +
0.1C
B
300 ns
Setup Time for STOP
Condition
t
SU:STO
0.6
Fs
Spike Pulse Width That Can Be
Suppressed by Input Filter
t
SP
(Note 12) 0 50 ns
SCL, SDA Capacitive Loading C
B
400 pF
SMBus Timeout 25 30 35 ms